Solarposition.org

Kermanshah Province · Iran · 34.52° N · 45.58° E

Solar position in Qaşr-e Shīrīn

Sun position, daylight and the best solar panel angle for Qaşr-e Shīrīn — computed for 34.52° N, 45.58° E, 363 m above sea level.

Sunrise today06:40104° ESE
Sunset today17:42256° WSW
Best panel angle30°year-round, facing south
Off-grid angle58°best for the darkest month

The sun right now

Azimuth180.0°
Elevation43.7°
At solar noon, 12:11Open on the sun map

Sun in Qaşr-e Shīrīn today

Saturday, 24 October 2026 · local time UTC+3:30

EventTimeDirection / height
Astronomical dawn05:16sun 18° below horizon
Nautical dawn05:4512° below
Civil dawn06:146° below
Sunrise06:40104° ESE
Golden hour ends07:15sun 6° up
Solar noon12:1143.7° high
Golden hour starts17:08sun 6° up
Sunset17:42256° WSW
Civil dusk18:086° below
Nautical dusk18:3712° below
Astronomical dusk19:0618° below
Day length11 h 02 min

Sun path diagram for Qaşr-e Shīrīn

Where the sun stands in the sky: the centre is straight overhead, the outer ring is the horizon. Numbers mark local clock hours.

15°30°45°60°75°N30°60°E120°150°S210°240°W300°330°June solstice678910111213141516171819EquinoxDecember solstice891011121314151617Today
  • June solstice
  • Equinox
  • December solstice
  • Today

On the June solstice the sun reaches 78.9° at solar noon in Qaşr-e Shīrīn; on the December solstice only 32.1°. Sunrise swings from 60° ENE in June to 118° ESE in December — a 58° arc along the horizon.

Sunrise, sunset and sun height by month

Values for the 21st of each month, local clock time including daylight saving time.

MonthSunriseSolar noonSunsetDay lengthNoon elevation
January07:3212:3917:4610 h 14 min35.6°
February07:0612:4118:1611 h 10 min45.0°
March06:3012:3518:3912 h 10 min55.8°
April05:4912:2619:0413 h 15 min67.4°
May05:2112:2419:2714 h 06 min75.7°
June05:1512:2919:4314 h 28 min78.9°
July05:3012:3419:3714 h 08 min75.9°
August05:5212:3019:0813 h 16 min67.5°
September06:1412:2018:2612 h 11 min56.1°
October06:3812:1217:4611 h 08 min44.7°
November07:0612:1317:2010 h 13 min35.6°
December07:3012:2517:209 h 51 min32.1°

A year of daylight in Qaşr-e Shīrīn

Each column is one day of 2026. Bright: sun above the horizon; soft: civil twilight; line: solar noon. Steps are daylight saving time changes.

00:0003:0006:0009:0012:0015:0018:0021:0000:00JanFebMarAprMayJunJulAugSepOctNovDec

Best solar panel angle in Qaşr-e Shīrīn

Fixed array facing south (azimuth 180°). Energy per kWp from NASA POWER monthly climate, including clouds, temperature and snow reflection.

30°collects the most energy over a year: 1763 kWh per kWp.

58°gives the most in the darkest month — the one an off-grid system is sized for.

30%40%50%60%70%80%90%100%0°10°20°30°40°50°60°70°80°90°Best year-round 30°Best worst-month 58°70°Yearly energyWorst-month energy
  • Yearly energy
  • Worst-month energy
TiltkWh/kWp per yearShare of best yearDecember kWh/kWp/dayBest ÷ worst month
0°156088%2.103.1×
15°171297%2.872.2×
30° year-round best1763100%3.471.7×
35° = latitude1756100%3.621.5×
45°170997%3.841.4×
58° off-grid best158390%3.971.3×
60°155788%3.971.3×
70°140680%3.921.5×
90°101458%3.482.6×

A fixed array in Qaşr-e Shīrīn produces the most over a year at 30°. The design month for an off-grid system is December: at 58° it makes 3.97 kWh per kWp a day, 14% more than at 30°, and costs 10% of the yearly total. Why steep panels win winter.

Off-grid solar in Qaşr-e Shīrīn at 70°

Daily energy of 1 kWp by month. Bars: panels at 70°. Line: panels at 30° (year-round best).

01234567January: 3.96 (70°)4.0JanFebruary: 4.12 (70°)4.1FebMarch: 4.24 (70°)4.2MarApril: 3.64 (70°)3.6AprMay: 3.27 (70°)3.3MayJune: 3.06 (70°)3.1JunJuly: 3.13 (70°)3.1JulAugust: 3.68 (70°)3.7AugSeptember: 4.45 (70°)4.5SepOctober: 4.41 (70°)4.4OctNovember: 4.37 (70°)4.4NovDecember: 3.92 (70°)3.9Dec30°
MonthSun hours, flatSun hours at 70°kWh/kWp/day at 70°at 30°Mean temp.
January2.794.493.963.626.6 °C
February3.664.714.124.198.4 °C
March4.944.944.244.9313.1 °C
April5.904.333.645.0418.3 °C
May7.124.003.275.4224.7 °C
June8.313.853.065.7930.8 °C
July7.913.993.135.5934.0 °C
August7.294.663.685.6133.8 °C
September6.215.544.455.5529.3 °C
October4.475.334.414.6623.1 °C
November3.255.104.374.0613.7 °C
December2.584.473.923.478.7 °C
Year5.38 avg4.61 avg1406 kWh1763 kWh

Sizing example. To run a 1 kWh-per-day load through June on LiFePO4 batteries (charge controller, battery and inverter losses included) you need about 390 Wp of panels at 70°, versus 340 Wp at 30°. Here the lower tilt is the better winter choice — the sun stays high enough. Size your own system.

Row spacing in Qaşr-e Shīrīn

Distance between rows of 2 m long panels (slope length) so that no row shades the next between 10:00 and 14:00 solar time on the winter solstice.

4.1 mrow pitch at 70°

3.5 mrow pitch at 30°

Row spacing calculator

How Qaşr-e Shīrīn compares in Iran

Against the other 422 places in Iran with climate data, for a fixed array at its best angle.

210thof 423 places in Iran for sunshine, shared: 5.38 peak sun hours a day on flat ground.

±0%solar energy a year compared with the average place in Iran: 1,763 against 1,760 kWh per kWp.

−7 mindaylight on the longest day, compared with Tehran: 14 h 28 min against 14 h 35 min.

30°best year-round tilt here; across Iran it runs from 24° in Kīsh to 33° in Khūy.

Of the 423 places in Iran, Jālq gets the most sun (6.10 peak sun hours a day) and Bandar-e Anzalī the least (3.92); Qaşr-e Shīrīn ranks joint 210th. In its darkest month, June, 1 kWp of off-grid panels at 70° makes 3.06 kWh a day here, against 2.96 kWh on average in Iran. The shortest day lasts 9 h 51 min, +6 min compared with Tehran.

The sunniest places in Iran

Solar forecast for Qaşr-e Shīrīn, next 48 hours

Expected output of 1 kWp at 70°, computed from the ICON-EU weather model of the Deutscher Wetterdienst (DWD), Europe.

Loading the latest forecast…

Questions about the sun in Qaşr-e Shīrīn

What is the best solar panel angle in Qaşr-e Shīrīn?
For a fixed array facing south, the best year-round tilt in Qaşr-e Shīrīn is 30°, worth about 1763 kWh per kWp a year. An off-grid system that has to get through December does better at about 58°.
What time is sunrise and sunset in Qaşr-e Shīrīn today?
On 24 October 2026 the sun rises at 06:40 and sets at 17:42 local time (UTC+3:30), giving 11 h 02 min of daylight. Solar noon is at 12:11.
How many peak sun hours does Qaşr-e Shīrīn get?
On a flat surface 5.4 hours a day averaged over the year, from 2.6 in December to 8.3 in June. Panels tilted at 70° receive 3.8 sun hours a day in June.
How high does the sun get in Qaşr-e Shīrīn?
At solar noon the sun stands 78.9° above the horizon on the June solstice and 32.1° on the December solstice.
Is Qaşr-e Shīrīn a good place for solar panels?
With 5.4 peak sun hours a day on flat ground, Qaşr-e Shīrīn ranks joint 210th of 423 places in Iran for sunshine. A 1 kWp array at the best angle (30°) makes about 1,763 kWh a year here, as much as the average place in Iran.

Places near Qaşr-e Shīrīn

All places in Iran

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Sun positions: NREL Solar Position Algorithm. Climate: NASA POWER monthly climatology (NASA Langley Research Center). Forecast: Deutscher Wetterdienst, ICON-EU (CC BY 4.0), processed. Places: GeoNames (CC BY 4.0). Time zones: IANA. Sources and licences.